/* 系统登录页面 */
<template>
  <div class="page-login">
    <div class="page-login--layer page-login--layer-area">
      <ul class="circles">
        <li v-for="n in 10"
            :key="n"></li>
      </ul>
    </div>
    <div class="page-login--layer">
      <div class="page-login--content"
           flex="dir:top main:justify cross:stretch box:justify">
        <div class="page-login--content-header">
          <p class="page-login--content-header-motto">
            时间是一切财富中最宝贵的财富
          </p>
        </div>
        <div class="page-login--content-main"
             flex="dir:top main:center cross:center">
          <!-- logo -->
          <img class="page-login--logo"
               src="@/assets/images/login/logo@2x.png" />
          <!-- form -->
          <div class="page-login--form">
            <el-card shadow="never">
              <el-form ref="loginForm"
                       label-position="top"
                       :rules="rules"
                       :model="formLogin"
                       size="default">
                <el-form-item prop="username">
                  <el-input type="text"
                            v-model="formLogin.username"
                            placeholder="用户名"
                            @keyup.enter.native="submit">
                    <i slot="prepend"
                       class="fa fa-user-circle-o"></i>
                  </el-input>
                </el-form-item>
                <el-form-item prop="password">
                  <el-input type="password"
                            v-model="formLogin.password"
                            placeholder="密码"
                            @keyup.enter.native="submit">
                    <i slot="prepend"
                       class="fa fa-keyboard-o"></i>
                  </el-input>
                </el-form-item>
                <el-form-item prop="code">
                  <el-input type="text"
                            v-model="formLogin.code"
                            placeholder="验证码"
                            @keyup.enter.native="submit">
                    <template slot="append">
                      <img :src="imgCode"
                           class="login-code"
                           @click="refreshCode" />
                    </template>
                  </el-input>
                </el-form-item>
                <el-button :loading="loading"
                           size="default"
                           @click="submit"
                           type="primary"
                           class="button-login">
                  登录
                </el-button>
              </el-form>
            </el-card>
            <p class="page-login--options"
               flex="main:justify cross:center">
              <span>
                <zero-icon name="question-circle" /> 忘记密码
              </span>
              <span>注册用户</span>
            </p>
          </div>
        </div>
        <div class="page-login--content-footer">
          <p class="page-login--content-footer-locales">
            <a v-for="language in $languages"
               :key="language.value"
               @click="onChangeLocale(language.value)">
              {{ language.label }}
            </a>
          </p>
          <p class="page-login--content-footer-copyright">
            Copyright
            <zero-icon name="copyright" />
            2020 zero 出品
            <a href="https://gitee.com/zero-wsh"> @zero-wsh </a>
          </p>
          <p class="page-login--content-footer-options">
            <a href="#">帮助</a>
            <a href="#">隐私</a>
            <a href="#">条款</a>
          </p>
        </div>
      </div>
    </div>
  </div>
</template>

<script>
import localeMixin from '@/locales/mixin.js'
import util from '@/libs/util.js'
import { createRoutesInLayout, routesOutLayout, resetRouter } from '@/router'
import { handleMenu, handleRouter } from '@/api/common'
export default {
  name: 'login',
  mixins: [
    localeMixin
  ],
  data () {
    return {
      loading: false,
      imgCode: '',
      redisKey: '',
      // 表单
      formLogin: {
        username: process.env.VUE_APP_USERNAME,
        password: process.env.VUE_APP_USERNAME,
        code: ''
      },
      // 表单校验
      rules: {
        username: [
          {
            required: true,
            message: '请输入用户名',
            trigger: 'blur'
          }
        ],
        password: [
          {
            required: true,
            message: '请输入密码',
            trigger: 'blur'
          }
        ],
        code: [
          {
            required: true,
            message: '请输入验证码'
          }
        ]
      }
    }
  },
  created () {
    this.refreshCode()
  },
  methods: {
    refreshCode () {
      const config = {
        url: '/sysUser/captcha',
        method: 'get'
      }
      this.$axios(config).then((res) => {
        this.imgCode = res.data.image
        this.redisKey = res.data.redisKey
      })
    },
    /**
     * @description 接收选择一个用户快速登录的事件
     * @param {Object} user 用户信息
     */
    handleUserBtnClick (user) {
      this.formLogin.username = user.username
      this.formLogin.password = user.password
      this.submit()
    },
    /**
     * @description 提交表单
     */
    // 提交登录信息
    submit () {
      this.$refs.loginForm.validate((valid) => {
        if (valid) {
          this.loading = true
          // 登录
          const config = {
            url: '/sysUser/sysLogin',
            method: 'post',
            data: {
              name: this.$getRsaCode(this.formLogin.username),
              password: this.$getRsaCode(this.formLogin.password),
              verCode: this.formLogin.code,
              redisKey: this.redisKey
            }
          }
          this.$axios(config).then((res) => {
            // uuid 是用户身份唯一标识 用户注册的时候确定 并且不可改变 不可重复
            util.storage.set('uuid', res.data.userInfo.id)
            // 设置 vuex 用户信息
            this.$store.dispatch('zerovue/user/set', { name: res.data.userInfo.name }, { root: true })
            // 用户登录后从持久化数据加载一系列的设置
            this.$store.dispatch('zerovue/account/load')
            // 处理菜单和权限
            this.handleMenuAndPower(res.data)
            var zero = handleRouter(res.data.routerInfo)
            // [ 路由 ] 计算路由
            const routes = createRoutesInLayout(zero).concat(routesOutLayout)
            // [ 路由 ] 重新设置路由
            resetRouter(routes)
            // [ 路由 ] 重新设置多标签页池
            this.$store.commit('zerovue/page/init', routes)
            // 重定向对象不存在则返回顶层路径
            this.$router.replace(this.$route.query.redirect || '/')
            this.loading = false
          }).catch(() => {
            this.refreshCode()
            this.loading = false
          })
        }
      })
    },
    handleMenuAndPower (data) {
      /**
       * 菜单处理
       */
      const menu = handleMenu(data.menuInfo)
      // 设置侧边栏菜单
      this.$store.commit('zerovue/menu/asideSet', menu)
      // 初始化菜单搜索功能
      this.$store.commit('zerovue/search/init', menu)
      // 获取权限
      util.storage.set('powers', data.powerInfo)
    }
  }
}
</script>

<style lang="scss">
.page-login {
  @extend %unable-select;
  $backgroundColor: #f0f2f5;
  // ---
  background-color: $backgroundColor;
  height: 100%;
  position: relative;
  // 层
  .page-login--layer {
    @extend %full;
    overflow: auto;
  }
  .page-login--layer-area {
    overflow: hidden;
  }
  // 登陆页面控件的容器
  .page-login--content {
    height: 100%;
    min-height: 500px;
  }
  // header
  .page-login--content-header {
    padding: 1em 0;
    .page-login--content-header-motto {
      margin: 0px;
      padding: 0px;
      color: $color-text-normal;
      text-align: center;
      font-size: 12px;
    }
  }
  // main
  .page-login--logo {
    width: 240px;
    margin-bottom: 2em;
    margin-top: -2em;
  }
  // 登录表单
  .page-login--form {
    width: 280px;
    // 卡片
    .el-card {
      margin-bottom: 15px;
    }
    // 登录按钮
    .button-login {
      width: 100%;
    }
    // 输入框左边的图表区域缩窄
    .el-input-group__prepend {
      padding: 0px 14px;
    }
    .login-code {
      height: 40px - 2px;
      display: block;
      margin: 0px -20px;
      border-top-right-radius: 2px;
      border-bottom-right-radius: 2px;
    }
    // 登陆选项
    .page-login--options {
      margin: 0px;
      padding: 0px;
      font-size: 14px;
      color: $color-primary;
      margin-bottom: 15px;
      font-weight: bold;
    }
    .page-login--quick {
      width: 100%;
    }
  }
  // 快速选择用户面板
  .page-login--quick-user {
    @extend %flex-center-col;
    padding: 10px 0px;
    border-radius: 4px;
    &:hover {
      background-color: $color-bg;
      i {
        color: $color-text-normal;
      }
      span {
        color: $color-text-normal;
      }
    }
    i {
      font-size: 36px;
      color: $color-text-sub;
    }
    span {
      font-size: 12px;
      margin-top: 10px;
      color: $color-text-sub;
    }
  }
  // footer
  .page-login--content-footer {
    padding: 1em 0;
    .page-login--content-footer-locales {
      padding: 0px;
      margin: 0px;
      margin-bottom: 15px;
      font-size: 12px;
      line-height: 12px;
      text-align: center;
      color: $color-text-normal;
      a {
        color: $color-text-normal;
        margin: 0 0.5em;
        &:hover {
          color: $color-text-main;
        }
      }
    }
    .page-login--content-footer-copyright {
      padding: 0px;
      margin: 0px;
      margin-bottom: 10px;
      font-size: 12px;
      line-height: 12px;
      text-align: center;
      color: $color-text-normal;
      a {
        color: $color-text-normal;
      }
    }
    .page-login--content-footer-options {
      padding: 0px;
      margin: 0px;
      font-size: 12px;
      line-height: 12px;
      text-align: center;
      a {
        color: $color-text-normal;
        margin: 0 1em;
      }
    }
  }
  // 背景
  .circles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    margin: 0px;
    padding: 0px;
    li {
      position: absolute;
      display: block;
      list-style: none;
      width: 20px;
      height: 20px;
      background: #fff;
      animation: animate 25s linear infinite;
      bottom: -200px;
      @keyframes animate {
        0% {
          transform: translateY(0) rotate(0deg);
          opacity: 1;
          border-radius: 0;
        }
        100% {
          transform: translateY(-1000px) rotate(720deg);
          opacity: 0;
          border-radius: 50%;
        }
      }
      &:nth-child(1) {
        left: 15%;
        width: 80px;
        height: 80px;
        animation-delay: 0s;
      }
      &:nth-child(2) {
        left: 5%;
        width: 20px;
        height: 20px;
        animation-delay: 2s;
        animation-duration: 12s;
      }
      &:nth-child(3) {
        left: 70%;
        width: 20px;
        height: 20px;
        animation-delay: 4s;
      }
      &:nth-child(4) {
        left: 40%;
        width: 60px;
        height: 60px;
        animation-delay: 0s;
        animation-duration: 18s;
      }
      &:nth-child(5) {
        left: 65%;
        width: 20px;
        height: 20px;
        animation-delay: 0s;
      }
      &:nth-child(6) {
        left: 75%;
        width: 150px;
        height: 150px;
        animation-delay: 3s;
      }
      &:nth-child(7) {
        left: 35%;
        width: 200px;
        height: 200px;
        animation-delay: 7s;
      }
      &:nth-child(8) {
        left: 50%;
        width: 25px;
        height: 25px;
        animation-delay: 15s;
        animation-duration: 45s;
      }
      &:nth-child(9) {
        left: 20%;
        width: 15px;
        height: 15px;
        animation-delay: 2s;
        animation-duration: 35s;
      }
      &:nth-child(10) {
        left: 85%;
        width: 150px;
        height: 150px;
        animation-delay: 0s;
        animation-duration: 11s;
      }
    }
  }
}
</style>
